(b)(4).The device was not returned for analysis.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot.Additionally, a review of the complaint history identified no other incidents reported from this lot.The investigation determined the reported cable break resulting in the inability to straighten the tip appears to be related to user technique.The reported noise and mechanical issue with the knob (unable to straighten guide) were likely secondary effects to the cable break.Based on the information reviewed, there is no indication of a product quality issue with respect to design, manufacturing or labeling of the device.
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